Display screen or portion thereof with icon



FIG. 1 is a front view of a display screen or portion thereof with icon, showing our new design; and,

FIG. 2 is a front view of a display screen or portion thereof with icon, showing an alternative embodiment of the new design.

In the drawings, the dot-dash lines are for the purpose of illustrating a display screen or portion thereof with icon and forms no part of the claimed design. 

CLAIM The ornamental design for a display screen or portion thereof with icon, as shown and described. 